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CVE-2026-26187

lakeFS is an open-source tool that transforms object storage into a Git-like repositories. Prior to 1.77.0, the local block adapter (pkg/block/local/adapter.go) allows authenticated users to read and write files outside their designated storage boundaries. The verifyRelPath function used strings.HasPrefix() to verify that requested paths fall within the configured storage directory. This check was insufficient because it validated only the path prefix without requiring a path separator, allowing
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:75b95254e7e32cf5941b3df0deff549007b1cfed6caf002d227e32282d077684
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"lakeFS","vendor":"treeverse","versions":[{"status":"affected","version":"< 1.77.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7a27701d13bd870d3edf8940eb9c74e5c3462f113e0905052123ded4670cd188 · sha256:f798a318c62c39bd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7a27701d13bd870d3edf8940eb9c74e5c3462f113e0905052123ded4670cd188 · sha256:f798a318c62c39bd… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7a27701d13bd870d3edf8940eb9c74e5c3462f113e0905052123ded4670cd188 · sha256:f798a318c62c39bd… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/treeverse/lakeFS/commit/cbc106275357302a834280f133265dc39f1384ce","tags":["x_refsource_MISC"],"url":"https://github.com/treeverse/lakeFS/commit/cbc106275357302a834280f133265dc39f1384ce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7a27701d13bd870d3edf8940eb9c74e5c3462f113e0905052123ded4670cd188 · sha256:f798a318c62c39bd… · /containers/cna/references/1
{"name":"https://github.com/treeverse/lakeFS/releases/tag/v1.77.0","tags":["x_refsource_MISC"],"url":"https://github.com/treeverse/lakeFS/releases/tag/v1.77.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7a27701d13bd870d3edf8940eb9c74e5c3462f113e0905052123ded4670cd188 · sha256:f798a318c62c39bd… · /containers/cna/references/2
{"name":"https://github.com/treeverse/lakeFS/security/advisories/GHSA-699m-4v95-rmpm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/treeverse/lakeFS/security/advisories/GHSA-699m-4v95-rmpm"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7a27701d13bd870d3edf8940eb9c74e5c3462f113e0905052123ded4670cd188 · sha256:f798a318c62c39bd… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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